describe the main difference between a bright field, compound light microscope and a dissecting microscope

Please find the main difference in details between these two microscopes below

Explanation:

Compound microscopes and dissecting microscopes are two types of light microscopes. This means that both types of microscope uses light as a source of view. However, they are used for different purposes despite this similarity.

- The compound microscope is used to view the internal features of a small specimen by looking through it. This is due to the high magnifying power of its objective lenses (40x - 1000x).

- On the other hand, dissecting microscopes are used only to view the surface of a large specimen owing to its low magnifying power. It can be used to view a three dimensional object.

the answer is a or when it says crossing over

the answer is sex-linked recessive.